Title: AN ANATOMICAL STUDY OF THE ANTERIOR SPACE OF TENTORIAL NOTCH
Abstract: Objective To explore the anatomic relationships of nerves,vessles,brain stem and hypothalamus in the anterior diastema of tentorial notch incisura. Methods The anatomic relationships of nerves,vessles,brain stem and hypothalamus in the anterior diastema of tentorial notch incisura were observed and measured on adult cadaveric brain specimens. Results In the anterior diastema of tentorial notch incisura,cranial nerve was an important anatomic landmark. The interior diastema of cranial nerve was composed of arachnoid segment of cranial nerve,clinoid process superior segment of arteria carotis interna and arteria communicans posterior. The exterior diastema of cranial nerve was made up of arachnoid segment of cranial nerve and the edge of tentorial notch incisura. The adjoin relationship between arteria communicans posterior and cranial nerve showed significant difference. The posterior communicating artery was located above oculomotor nerve(23/30),and supplied conus arteriosus of stalk hypophysial as well as lied above oculomotor nerve and under posterior clinoid process(7/30). Its perforating branches supplied hypothalamus and cerebral peduncle.The furcal height of the basilar artery apex revealed significant difference with a mean height of 0.099±0.0076cm. 1/4(8/30)of the basilar artery apex was located below the baseline,and 3/4(22/30)of them was situated above the baseline. Conclusion The best way to improve the effect of operation on pathological changes in this region is to reasonable utilize the nature diastem of the nerves,vessles and brain tissue in the anterior diastema of tentorial notch incisura,reasonable deal with the pathological changes,and be familiar with the structural anatomy variation of this region.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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